The nest NLLI-581 was discovered in the winter of 2009. The position of the nest is different from the many other nests in the database. This nest is located two meters from the edge of the stream and swamp. We asked our self the question if this mound could be a nest. Because it was winter we could not confirm. Some weeks ago we revisited the nest and thousands of ants were taking a sunbath. So we confirm there can live ants near the water. But 25 meters away we discovered a second nest, connected by a ant road. This nest is even closer to the water!

There are several funny details about these two nests:

• Both nests are very close to the river bed, which is not very common for wood ants. Especially when you know that a better habitat (dry, high, spruces and beeches) just 10 meters away. Why do they choose the wet location for the nests?
• There are two nests and it appears that there is the same species on both nests. Polydome or monodome?
• In nest NLLI-582 the ants are carrying materials high up in the dead oak. Are they building a nest 5 meters in the sky?
• One photo, nr 3 shows 4 ants carrying parts of ants from NLLI-581 to NLLI-582. But both nests are the same species. What happens?

So, some research is needed.  To be continued.